As doubt for and objection to Brexit continue, progress favorable to those in support of the breaking away has been made, creating a silver lining for the closely watched second round of talks.
Britain's "divorce bill" is estimated at about €60 billion although some commentators have suggested it could be as large as €100 billion.
The talks this week are set to center on the rights of citizens in each other's nations post-Brexit, the bill Britain has to pay to meet existing commitments, the border issue in Ireland and the pre-eminence of the EU's Court of Justice.
The British side had urged over the past months an immediate start of trade talks, but Barnier had insisted that key issues of Brexit must be dealt with before trade talks begin.
Dozens of officials from both sides are involved, some shuttling among meeting rooms scattered over almost half the floors of the European Commission's 13-storey Berlaymont headquarters, fuelled, one said, by EU coffee and biscuits.
Negotiation on the exit bill might be tough as British Foreign Minister Boris Johnson made the remark last week that the European Union could "go whistle" over its "extortionate" bill demand, which means the European Union has little chance of getting it.
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Those divides become stronger as one's political ideology becomes stronger, particularly among Democrats, according to the data. In addition to higher education, the study also looked at the public opinion of the impact of the news media.
Barnier last week held a series of meetings in Brussels with British opposition Labour leader Jeremy Corbyn and other United Kingdom figures at odds with May.
The UK government has promised to split from the EU's single-market and customs union.
The rowing will be seen as further evidence of Theresa May's weakness after seeing her Commons majority wiped out in last month's general election. The tensions have shaken the British government, which on Thursday introduced the draft law that would formally put an end to Britain's membership of the EU May faces a battle over the bill, which opponents said included a risky "power grab" by London at the expense of Scotland and Wales.
On Sunday, finance minister Philip Hammond, an advocate for a transition to Brexit, said most ministers now agreed with him: "Five weeks ago the idea of a transition period was quite a new concept".
"David Davis has vowed to "get down to business" and hit the "substance" of Brexit talks as a new round kicks off today", wrote the Daily Mirror.
European Union Chief negotiator Michel Barnier and UK Brexit Secretary David Davis British are leading their envoys in talks to minimize economic and social disruption. "But there's just one little problem".